class_docstr: State machine that computes the next state of a test based on the current state and
  perform actions accordingly during the state transition. For example:
  - passing -[two last results failed]-> failing: create github issue
  - failing -[last result passed]-> passing: close github issue
  - jailed -[latest result passed]-> passing: update the test's oncall
  ...
code: def _failing_to_passing(self) -> bool:
      return (
          len(self.test_results) > 0
          and self.test_results[0].is_passing()
      )
  
imports: import abc
  from github import Github
  from pybuildkite.buildkite import Buildkite
  from ray_release.test import Test, TestState
  from ray_release.aws import get_secret_token
label_desc: Use image node_id 10 for calling the TestStateMachine obj's underlying member method code with example usage: obj._failing_to_passing() and returns: unknown